Celsius to Fahrenheit Converter
Convert Celsius to Fahrenheit, or Fahrenheit to Celsius, instantly.
Fahrenheit
212°
Temperature Conversion Formulas
°F = (°C × 9/5) + 32. °C = (°F − 32) × 5/9.
Worked example
Convert 100°C (boiling water) to Fahrenheit.
(100 × 9/5) + 32 = 180 + 32 = 212
100°C = 212°F
Frequently Asked Questions
What is the formula to convert Celsius to Fahrenheit?
°F = (°C × 9/5) + 32.
What is the formula to convert Fahrenheit to Celsius?
°C = (°F − 32) × 5/9.
What temperature is the same in both Celsius and Fahrenheit?
−40 degrees. Plugging −40 into either formula gives −40 back out, making it the one point where the two scales agree.
Why do Celsius and Fahrenheit use different numbers for freezing and boiling?
Celsius was designed around water: 0°C is freezing and 100°C is boiling, an even 100-degree span. Fahrenheit's scale was set from different reference points (originally a mix of a salt-ice brine mixture and body temperature), so water freezes at 32°F and boils at 212°F instead.
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